Height of a Prism Definition
The height or altitude of a prism is the distance between the two bases of a prism. It is the shortest line segment between the (possibly extended) bases. Height can also be used to refer to the specific length of this segment. The height of a prism is illustrated in the diagram below.
“Altitude of a Prism.” Mathwords, www.mathwords.com/a/altitude_prism.htm.